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zheka24 [161]
3 years ago
8

Halving the distance (i.e., decreasing by a factor of two) between two charged objects will cause the electrical force between t

hem to be ___ the initial force.

Physics
1 answer:
Tcecarenko [31]3 years ago
7 0

Explanation:

Below is an attachment containing the solution.

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The equation Upper E equals StartFraction 1 Over 2 pi epsilon Subscript 0 EndFraction StartFraction q ⁢ d Over z Superscript 3 E
Allushta [10]

Answer:

 E_aprox = 1.003 E_real

Explanation:

In this exercise we are given the expression for the electric field of a dipole in the axis direction of the dipole

         E_real = k 2q d / √(z² + d²)³

         

I think your equation has some errors.

In this case they indicate that d is the separation of the charges of the dipole

in the case of z »d this equations approximates

        E_aprox = k 2q  d/ z³

calculate the value for the two cases

         E_real = k2q  d / √[ ((23d)² + d²)³]  

         E_real = k2q  d / d³ 12201

         E_real = k2q   1/12201 d²

         E_aprox = k2q   d / (23.00d)³

         E_aprox = k2q   1/12167 d²

         

    the error between these quantities is

        E_aprox / E_real = 12201 d² / 12167 d²

        E_aprox / E_real = 1.003

        E_aprox = 1.003 E_real

4 0
3 years ago
A zebra starts from rest and accelerates at 1.9 m/s2 what will be the acceleration after 5 seconds
Alex73 [517]

Answer:

d = 23.75 m

The zebra has gone 23.75m after 5 seconds.

Corrected question;

A zebra starts from rest and accelerates at 1.9 m/s2. How far has the zebra gone after 5 seconds.

Explanation:

From the equation of motion;

d = vt + 0.5at^2 .........1

Where;

d = displacement

v = initial velocity = 0

t = time taken= 5 seconds

a = acceleration = 1.9 m/s^2

Substituting the given values into equation 1;

d = 0(5) + 0.5(1.9×5^2)

d = 0.5(1.9×5^2)

d = 23.75 m

The zebra has gone 23.75m after 5 seconds.

3 0
3 years ago
A astronaut exploring an asteroid jumps from a 10 meter tall cliff and lands
anyanavicka [17]
I’m pretty sure the answer would be :
9.8m/s2

Explanation: gravity =9.8m/s2
7 0
3 years ago
I need help with science please!
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A) Oil B) Wood C) 0.02J D) 3g E) Gas

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